Synonyms and related words :
animal, animalian, animalic, animalistic, atavistic, automatic, beastlike, beastly, bestial, blind, bodily, born, brutal, brute, brutelike, brutish, coeval, compulsive, conditioned, congenital, connatal, connate, connatural, constitutional, dumb, forced, genetic, gut, hereditary, immediate, impulsive, in the blood, inborn, inbred, incarnate, indigenous, ingrained, inherent, inherited, innate, instinctual, intestinal, intrinsic, intuitional, intuitive, involuntary, irrational, libidinal, mechanical, mindless, native, native to, natural, natural to, nonrational, normal, organic, physical, primal, reflex, reflexive, regular, spontaneous, subconscious, subhuman, subliminal, temperamental, typical, unconscious, unintentional, unlearned, unmeditated, unpremeditated, unprompted, unthinking, unwilled, unwilling, unwitting, visceral, zoic, zooidal, zoologic